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Range select from:10W for 10 inH2O001 for 1 psi2.5 for 2.5 psi005 for 5 psi015 for 15 psi030 for 050 for 100 for 100 psi150 for 150 psi250 for 250 psi500 for 500 psi750 for 750 psi1K for 1000 psi1.5K for 1500 psi2.5K for 2500 psi3.5K for 3500 psi5.0K for 5000 psi16 for 16 to 32 inHg26 for 26 to 32 inHg32 for 0 to 32 inHg16H for 550 to 1100 hPa26H for 880 to 1100 hPa 32H for 0 to 1100 hPa